GB0705240D0 - Phase based sensing - Google Patents

Phase based sensing

Info

Publication number
GB0705240D0
GB0705240D0 GBGB0705240.0A GB0705240A GB0705240D0 GB 0705240 D0 GB0705240 D0 GB 0705240D0 GB 0705240 A GB0705240 A GB 0705240A GB 0705240 D0 GB0705240 D0 GB 0705240D0
Authority
GB
United Kingdom
Prior art keywords
phase based
based sensing
sensing
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB0705240.0A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinetiq Ltd
Original Assignee
Qinetiq Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qinetiq Ltd filed Critical Qinetiq Ltd
Priority to GBGB0705240.0A priority Critical patent/GB0705240D0/en
Publication of GB0705240D0 publication Critical patent/GB0705240D0/en
Priority to JP2009553201A priority patent/JP5453117B2/en
Priority to CN200880008164.1A priority patent/CN101636639B/en
Priority to EP08718676.3A priority patent/EP2122305B1/en
Priority to PCT/GB2008/000830 priority patent/WO2008110780A2/en
Priority to US12/529,291 priority patent/US8564786B2/en
Priority to ES08718676.3T priority patent/ES2688780T3/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
GBGB0705240.0A 2007-03-14 2007-03-14 Phase based sensing Ceased GB0705240D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GBGB0705240.0A GB0705240D0 (en) 2007-03-14 2007-03-14 Phase based sensing
JP2009553201A JP5453117B2 (en) 2007-03-14 2008-03-10 Phase-based detection
CN200880008164.1A CN101636639B (en) 2007-03-14 2008-03-10 Phase based sensing
EP08718676.3A EP2122305B1 (en) 2007-03-14 2008-03-10 Phase based sensing
PCT/GB2008/000830 WO2008110780A2 (en) 2007-03-14 2008-03-10 Phase based sensing
US12/529,291 US8564786B2 (en) 2007-03-14 2008-03-10 Phase based sensing
ES08718676.3T ES2688780T3 (en) 2007-03-14 2008-03-10 Phase-based detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0705240.0A GB0705240D0 (en) 2007-03-14 2007-03-14 Phase based sensing

Publications (1)

Publication Number Publication Date
GB0705240D0 true GB0705240D0 (en) 2007-04-25

Family

ID=38008683

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0705240.0A Ceased GB0705240D0 (en) 2007-03-14 2007-03-14 Phase based sensing

Country Status (7)

Country Link
US (1) US8564786B2 (en)
EP (1) EP2122305B1 (en)
JP (1) JP5453117B2 (en)
CN (1) CN101636639B (en)
ES (1) ES2688780T3 (en)
GB (1) GB0705240D0 (en)
WO (1) WO2008110780A2 (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0705240D0 (en) 2007-03-14 2007-04-25 Qinetiq Ltd Phase based sensing
GB0810977D0 (en) * 2008-06-16 2008-07-23 Qinetiq Ltd Phase based sensing
GB0815523D0 (en) * 2008-08-27 2008-10-01 Qinetiq Ltd Phase based sensing
CN114563026A (en) 2009-05-27 2022-05-31 希里克萨有限公司 Optical sensing method and device
GB0917150D0 (en) 2009-09-30 2009-11-11 Qinetiq Ltd Phase based sensing
GB2474882B (en) * 2009-10-29 2014-04-09 Tgs Geophysical Company Uk Ltd Signal processing
KR101522318B1 (en) * 2010-10-14 2015-05-27 파이버소닉스 인크. Interferometer systems
CN102095487B (en) * 2010-11-10 2013-02-13 中国科学院声学研究所 Optical path structure of time-division-multiplexing optical fiber hydrophone array and modulation and demodulation method thereof
CN102063777A (en) * 2011-01-24 2011-05-18 复旦大学 All-fiber debris flow monitoring system
GB2488841B (en) 2011-03-11 2014-09-10 Tgs Geophysical Company Uk Ltd Sensor array
GB2489749B (en) * 2011-04-08 2016-01-20 Optasense Holdings Ltd Fibre optic distributed sensing
GB201112161D0 (en) * 2011-07-15 2011-08-31 Qinetiq Ltd Portal monitoring
CN102538848B (en) * 2011-10-21 2014-10-01 上海大学 Switching value optical fiber sensing system and short time cross-correlation positioning method thereof
JP2013174563A (en) * 2012-02-27 2013-09-05 Oki Electric Ind Co Ltd Optical fiber sensor system
CN104422512B (en) * 2013-09-02 2018-01-05 中国石油天然气集团公司 Method for detecting vibration based on coherent light time domain reflection
CN103575309B (en) * 2013-11-21 2016-05-04 黑龙江大学 The straight cavity sensor frequency division multiplexing of single grating fibers multilongitudianl-mode laser device
US9791312B2 (en) * 2014-06-26 2017-10-17 Baker Hughes Incorporated OFDR system for localized vibration detection
US9506779B2 (en) 2014-06-27 2016-11-29 Raytheon Bbn Technologies Corp. Optical waveguide system for interrogating a plurality of sensor nodes wherein a location of the received input signal is determined
GB2601639B (en) * 2015-02-05 2022-09-21 Stingray Geophysical Hong Kong Ltd High speed sampling of sensors
GB2534904B (en) 2015-02-05 2022-02-23 Stingray Geophysical Hong Kong Ltd High speed sampling of sensors
DE112016000139A5 (en) * 2015-02-27 2017-07-06 Christoph Lohfink Sensor device for tires
US11002594B2 (en) * 2015-11-20 2021-05-11 Sentek Instrument, Llc Method and apparatus for distributed sensing
AU2017246520B2 (en) 2016-04-07 2022-04-07 Bp Exploration Operating Company Limited Detecting downhole events using acoustic frequency domain features
BR112018070577A2 (en) 2016-04-07 2019-02-12 Bp Exploration Operating Company Limited detection of downhole sand ingress locations
US10162245B2 (en) 2016-06-02 2018-12-25 Nec Corporation Distributed acoustic sensing system based on delayed optical hybrid phase demodulator
GB201700266D0 (en) * 2017-01-06 2017-02-22 Silixa Ltd Method and apparatus for optical sensing
AU2018246320A1 (en) 2017-03-31 2019-10-17 Bp Exploration Operating Company Limited Well and overburden monitoring using distributed acoustic sensors
EA202090528A1 (en) 2017-08-23 2020-07-10 Бп Эксплорейшн Оперейтинг Компани Лимитед DETECTION OF WELL SANDS
CA3078842C (en) 2017-10-11 2024-01-09 Bp Exploration Operating Company Limited Detecting events using acoustic frequency domain features
AU2019336790A1 (en) * 2018-09-06 2021-05-13 Adelos, Inc. Optical mandrel, optical-fiber assembly including an optical mandrel, and system for detecting an acoustic signal incident on an optical-fiber assembly
EP3887649A2 (en) 2018-11-29 2021-10-06 BP Exploration Operating Company Limited Event detection using das features with machine learning
GB201820331D0 (en) 2018-12-13 2019-01-30 Bp Exploration Operating Co Ltd Distributed acoustic sensing autocalibration
US11353567B2 (en) * 2019-02-22 2022-06-07 Semiconductor Components Industries, Llc Ultrasonic sensor having edge-based echo detection
WO2021073740A1 (en) 2019-10-17 2021-04-22 Lytt Limited Inflow detection using dts features
WO2021073741A1 (en) 2019-10-17 2021-04-22 Lytt Limited Fluid inflow characterization using hybrid das/dts measurements
WO2021093974A1 (en) 2019-11-15 2021-05-20 Lytt Limited Systems and methods for draw down improvements across wellbores
EP4165284A1 (en) 2020-06-11 2023-04-19 Lytt Limited Systems and methods for subterranean fluid flow characterization
CA3182376A1 (en) 2020-06-18 2021-12-23 Cagri CERRAHOGLU Event model training using in situ data

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121155A (en) * 1976-12-02 1978-10-17 The Charles Stark Draper Laboratory, Inc. Position readout device
US4231260A (en) * 1978-11-03 1980-11-04 The Charles Stark Draper Laboratory, Inc. Position determining system
US4770535A (en) * 1985-02-08 1988-09-13 The Board Of Trustees Of The Leland Stanford Junior University Distributed sensor array and method using a pulsed signal source
US4697926A (en) * 1985-02-08 1987-10-06 The Board Of Trustees Of The Leland Stanford Junior University Coherent distributed sensor and method using short coherence length sources
US4699513A (en) * 1985-02-08 1987-10-13 Stanford University Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors
US4649529A (en) * 1985-12-02 1987-03-10 Exxon Production Research Co. Multi-channel fiber optic sensor system
GB8609732D0 (en) 1986-04-22 1986-05-29 Plessey Co Plc Optical fibre sensing systems
US4848906A (en) * 1987-02-02 1989-07-18 Litton Systems, Inc. Multiplexed fiber optic sensor
GB2219902B (en) * 1988-06-14 1992-01-22 Plessey Co Plc Optical sensing systems
US5787053A (en) * 1989-07-07 1998-07-28 The United States Of America As Represented By The Secretary Of The Navy Continuous fiber pulse reflecting means
US5140154A (en) * 1991-01-16 1992-08-18 The United States Of America As Represented By The Secretary Of The Navy Inline fiber optic sensor arrays with delay elements coupled between sensor units
US5412474A (en) * 1992-05-08 1995-05-02 Smithsonian Institution System for measuring distance between two points using a variable frequency coherent source
US5680489A (en) * 1996-06-28 1997-10-21 The United States Of America As Represented By The Secretary Of The Navy Optical sensor system utilizing bragg grating sensors
US6522797B1 (en) * 1998-09-01 2003-02-18 Input/Output, Inc. Seismic optical acoustic recursive sensor system
US6449046B1 (en) * 1999-05-17 2002-09-10 Chung-Shan Institute Of Science And Technology Optically amplified WDM/TDM hybrid polarization-insensitive fiber-optic interferometric sensor system
US6466706B1 (en) * 2000-10-11 2002-10-15 The United States Of America As Represented By The Secretary Of The Navy Pulsed system and method for fiber optic sensor
US6785004B2 (en) * 2000-11-29 2004-08-31 Weatherford/Lamb, Inc. Method and apparatus for interrogating fiber optic sensors
US7119325B2 (en) * 2003-01-27 2006-10-10 Bookham Technology Plc System and method for monitoring environmental effects using optical sensors
US7003202B2 (en) * 2003-04-28 2006-02-21 The Furukawa Electric Co., Ltd. Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement
JP2005014059A (en) * 2003-06-26 2005-01-20 Ricoh Co Ltd Ultrashort pulsed laser beam machining process and device, and structure
CA2484320C (en) * 2003-10-10 2009-07-21 Optoplan As Active coherence reduction for interferometer interrogation
GB0424305D0 (en) 2004-11-03 2004-12-01 Polarmetrix Ltd Phase-disturbance location and measurement in optical-fibre interferometric reflectometry
US7336365B2 (en) * 2005-02-11 2008-02-26 Optoplan As Method and apparatus for suppression of crosstalk and noise in time-division multiplexed interferometric sensor systems
FR2889305B1 (en) * 2005-07-28 2007-10-19 Sercel Sa FIBER OPTIC INTERFEROMETER NETWORK
US7327462B2 (en) * 2005-08-17 2008-02-05 Litton Systems, Inc. Method and apparatus for direct detection of signals from a differential delay heterodyne interferometric system
GB0521713D0 (en) * 2005-10-25 2005-11-30 Qinetiq Ltd Traffic sensing and monitoring apparatus
US7372576B2 (en) * 2005-11-01 2008-05-13 Agilent Technologies, Inc. System and method for generating beams of light using an anisotropic acousto-optic modulator
US7375819B2 (en) * 2005-11-01 2008-05-20 Agilent Technologies, Inc. System and method for generating beams of light using an anisotropic acousto-optic modulator
GB2442745B (en) 2006-10-13 2011-04-06 At & T Corp Method and apparatus for acoustic sensing using multiple optical pulses
GB0705240D0 (en) 2007-03-14 2007-04-25 Qinetiq Ltd Phase based sensing
GB0810977D0 (en) 2008-06-16 2008-07-23 Qinetiq Ltd Phase based sensing
GB0815523D0 (en) * 2008-08-27 2008-10-01 Qinetiq Ltd Phase based sensing

Also Published As

Publication number Publication date
WO2008110780A3 (en) 2009-01-15
JP2010521661A (en) 2010-06-24
US8564786B2 (en) 2013-10-22
JP5453117B2 (en) 2014-03-26
EP2122305B1 (en) 2018-06-27
CN101636639A (en) 2010-01-27
US20100067018A1 (en) 2010-03-18
EP2122305A2 (en) 2009-11-25
ES2688780T3 (en) 2018-11-06
WO2008110780A2 (en) 2008-09-18
CN101636639B (en) 2014-06-25

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)